I will checkwhether they are stere for both pianos bill. But the RX is supposed to have note off, full damper , half damper etc but to my ears there is no difference. Yes those are the correct loading times for the PA1X ! That has always been a problem if a gigging musician gets a plug pulled out or there is a temporary power cut. Without all the extra samples the PA1X loads up in about 15 seconds. But with the Ram fully utilised prior to the OS update it was common for a 3 minuteplus boot up. They have done amazing things with the new OS.